Painful Lump? Why Bartholin's Cysts Swell & Medical Next Steps

Finding a painful lump near your vaginal opening can be alarming. One common cause is a Bartholin's cyst. While many Bartholin's cysts are harmless and painless, some can swell, become uncomfortable, or even infected.

Understanding why this happens — and knowing what to do next — can help you stay calm and take the right steps.

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What Is a Bartholin's Cyst?

The Bartholin's glands are two small glands located on either side of the vaginal opening. Their job is to produce fluid that helps lubricate the vagina.

Normally, you don't notice them at all. But if the duct (small opening) that drains the gland becomes blocked, fluid builds up. This can lead to a Bartholin's cyst.

A cyst is simply a fluid-filled sac. It is not cancer in most cases, especially in younger women.

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Why Does a Bartholin's Cyst Swell?

A Bartholin's cyst swells because fluid cannot drain properly. Here's how it typically happens:

• The duct becomes blocked.
• Fluid backs up inside the gland.
• The gland gradually enlarges.
• Pressure builds, causing swelling.

What Causes the Blockage?

The exact cause isn't always clear, but possible triggers include:

• Mild infection
• Inflammation
• Injury or irritation
• Thickened mucus
• Skin conditions affecting the area

Sometimes bacteria can infect the blocked gland, turning the cyst into an abscess. This is when pain usually becomes more intense.

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Symptoms of a Bartholin's Cyst

Not all cysts hurt. In fact, small ones may go unnoticed.

You may notice:

• A small, soft lump near one side of the vaginal opening
• Mild discomfort when walking or sitting
• A feeling of fullness in the vulva
• Pain during sex

If the cyst becomes infected (an abscess), symptoms can worsen:

• Severe pain
• Rapid swelling
• Redness
• Warmth in the area
• Fever
• Difficulty walking or sitting

An abscess can develop quickly — sometimes within a few days.

If you're experiencing any of these symptoms and want to understand whether they align with a Bartholin's Gland Cyst, a free AI-powered symptom checker can help you assess your situation before seeing a doctor.

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Is a Bartholin's Cyst Dangerous?

Most Bartholin's cysts are not dangerous. They are common in women of reproductive age and are usually manageable.

However, there are important exceptions:

• An infected cyst (abscess) can cause significant pain and requires treatment.
• In women over age 40, a new lump should be evaluated carefully to rule out rare cancers of the gland.

While cancer of the Bartholin's gland is uncommon, any new lump — especially in women over 40 — should be examined by a doctor.

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When Should You See a Doctor?

You should speak to a doctor if you experience:

• Severe pain
• Fever
• Rapid swelling
• Trouble sitting or walking
• Recurrent cysts
• A lump that does not improve
• You are over 40 and develop a new lump

Do not ignore intense pain or fever. These may signal an abscess that needs drainage.

If you are ever concerned about a potentially serious or life-threatening condition, speak to a doctor immediately.

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How Is a Bartholin's Cyst Diagnosed?

A healthcare provider usually diagnoses a Bartholin's cyst through a simple physical exam.

In some cases, they may:

• Swab the area if infection is suspected
• Test for sexually transmitted infections (STIs)
• Take a biopsy in women over 40 to rule out cancer

Imaging tests are rarely needed.

The exam is usually quick, though it may feel uncomfortable if the area is tender.

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Treatment Options for a Bartholin's Cyst

Treatment depends on:

• Size
• Pain level
• Presence of infection
• Your age
• Whether it has happened before

1. Watchful Waiting (If Painless)

If the cyst is small and not painful, your doctor may recommend:

• No immediate treatment
• Monitoring for changes

Many small cysts go away on their own.

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2. Sitz Baths (Warm Soaks)

For mild discomfort, soaking in a few inches of warm water several times a day may help:

• Promote drainage
• Reduce swelling
• Ease discomfort

This is often recommended for 3–4 days.

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3. Antibiotics

Antibiotics are usually only prescribed if:

• There is clear infection
• An STI is suspected
• There are signs of spreading infection

Antibiotics alone may not cure an abscess if fluid is trapped. Drainage is often necessary.

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4. Drainage Procedure

If the cyst becomes an abscess, a minor in-office procedure may be needed.

This typically involves:

• Numbing the area
• Making a small incision
• Draining the fluid
• Possibly placing a small catheter (Word catheter) to allow continued drainage

The catheter usually stays in place for several weeks to prevent recurrence.

Relief is often rapid after drainage.

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5. Marsupialization

If cysts keep coming back, a surgical procedure called marsupialization may be recommended.

This involves:

• Opening the cyst
• Stitching the edges open
• Creating a permanent drainage pathway

This reduces the chance of recurrence.

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6. Gland Removal (Rare)

Complete removal of the gland is rarely necessary but may be considered if:

• Cysts are recurrent and severe
• There is concern about cancer

This is typically done in a hospital setting.

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Can a Bartholin's Cyst Go Away on Its Own?

Yes — especially if it is:

• Small
• Not infected
• Mildly uncomfortable

However, once an abscess forms, it usually does not resolve without medical drainage.

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How to Prevent Recurrence

There's no guaranteed way to prevent a Bartholin's cyst, but you can reduce risk by:

• Practicing safe sex
• Treating infections early
• Avoiding irritation in the genital area
• Maintaining good hygiene (without harsh soaps)

Even with good care, some women experience repeat cysts.

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What It Feels Like Emotionally

It's normal to feel:

• Embarrassed
• Anxious
• Worried about cancer
• Concerned about sexual health

Remember: A Bartholin's cyst is common and treatable. Most cases are not serious.

Still, don't self-diagnose when pain is significant. Getting checked can bring peace of mind and faster relief.

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The Bottom Line

A Bartholin's cyst happens when a gland near the vaginal opening becomes blocked and fills with fluid. Many are painless. Some swell and become infected, causing significant discomfort.

Key Takeaways:

• Small cysts may not need treatment.
• Warm soaks can help mild cases.
• Severe pain or fever requires medical attention.
• Abscesses usually need drainage.
• Women over 40 with a new lump should always be evaluated.

If you're uncertain about what you're experiencing, using a free Bartholin's Gland Cyst symptom checker can give you personalized insights based on your specific symptoms and help you decide on next steps.

Most importantly, speak to a doctor about any painful lump, persistent swelling, fever, or anything that feels serious or life-threatening. Prompt medical care can prevent complications and provide relief quickly.

You don't have to guess — and you don't have to suffer in silence.